This video shows what you need to know to pass CSWP assembly segment exam, and some tips for faster modelling
You can find another video of CSWP segment 3 here: https://www.youtube.com/watch?v=qsNYn8LJ7RY
You can find PDF document and existing parts here:
https://grabcad.com/questions/cswp-segment-3-assemblies-preparation
You can also find existing parts here:
https://grabcad.com/questions/how-to-prepare-for-solidworks-cswp-certification-exam